Coil for contactors: 3TF30 to 3TF33, 3TF40 to 3TF43 3TH3, 3TH4 3TB40 to 3TB44, 3TC44, 3TH8 AC 415 V 50 Hz AC 500 V 60 Hz replacement for - 3TY74030AR0

Product Description

Siemens AC Contactor Coil for 3TF30–3TF33 & 3TF40–3TF43, 240V AC – 3TY74030AU0

Product Description

The Siemens 3TY74030AU0 is an AC contactor coil / magnet coil designed as a replacement spare for a wide range of Siemens contactors and control relays, including 3TF30 to 3TF33, 3TF40 to 3TF43, 3TH3, 3TH4, 3TB40 to 3TB44, 3TC44 and 3TH8 series devices.

It is rated for 240V AC at 50Hz and 288V AC at 60Hz, making it suitable for compatible AC control circuits in industrial motor-control and electrical switching applications. Siemens coil references for this contactor family include the 240V AC variant within the 3TY7403 coil series used across these compatible contactor and relay ranges.

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The contactor coil is the electromagnetic operating component that actuates the contactor or control relay when the specified control voltage is applied. The 3TY74030AU0 is suitable as a replacement spare coil during maintenance, servicing and repair of compatible Siemens equipment.

This Siemens replacement coil is widely used in motor starters, industrial control panels, electrical control cabinets, automation systems, manufacturing machinery and OEM equipment. Replacing a faulty coil can help restore reliable operation without replacing the complete contactor, provided the remaining components are serviceable.

Key Features

• Brand: Siemens

• Product Type: AC Contactor Coil / Magnet Coil

• Part Number: 3TY74030AU0

• Coil Voltage: 240V AC at 50Hz

• Coil Voltage: 288V AC at 60Hz

• Compatible Series:

  • 3TF30–3TF33

  • 3TF40–3TF43

  • 3TH3

  • 3TH4

  • 3TB40–3TB44

  • 3TC44

  • 3TH8

• Designed for replacement and maintenance

• Reliable electromagnetic operation

• Suitable for industrial motor-control applications

  

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Applications

The Siemens 3TY74030AU0 contactor coil is suitable for:

• Siemens 3TF30–3TF33 contactors

• Siemens 3TF40–3TF43 contactors

• Siemens 3TH3 and 3TH4 control relays

• Siemens 3TB40–3TB44 contactors

• Siemens 3TC44 contactors

• Siemens 3TH8 control devices

• Motor starter assemblies

• Industrial motor-control panels

• Electrical control cabinets

• Industrial automation systems

• Manufacturing machinery

• OEM equipment

• Contactor and relay maintenance

Benefits

Wide Compatibility

The 3TY74030AU0 is suitable for multiple Siemens contactor and control relay series, making it a versatile replacement spare.

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50Hz & 60Hz Operation

The coil is specified for 240V AC at 50Hz and 288V AC at 60Hz, supporting compatible AC control systems.

Reliable Replacement Solution

It provides a practical replacement option for worn or faulty coils in compatible Siemens contactors and relays.

Easy Maintenance

Replacing the coil can help restore equipment operation without replacing the complete contactor or relay where appropriate.

Industrial Application

Suitable for motor control, automation, machinery and electrical switching systems across a wide range of industrial installations.

Why Choose Siemens 3TY74030AU0?

The Siemens 3TY74030AU0 is a widely compatible 240V AC replacement coil for several Siemens contactor and relay families. Its broad compatibility makes it useful for OEMs, panel builders, electrical contractors and maintenance teams managing Siemens motor-control equipment.

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Always verify the existing contactor or relay model, coil part number, control voltage and frequency before installation.

Buy Siemens 3TY74030AU0 from SB Smart

Looking for a Siemens 3TY74030AU0 contactor coil supplier in India? SB Smart supplies Siemens contactor coils, magnet coils, control relay coils, main contact kits, auxiliary contacts and industrial electrical spare parts for OEMs, panel builders, electrical contractors and maintenance teams.

Frequently Asked Questions

1. What is Siemens 3TY74030AU0?

The 3TY74030AU0 is a Siemens 240V AC contactor coil designed for compatible 3TF, 3TH, 3TB, 3TC and 3TH8 series devices.

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2. What is the coil voltage?

It is specified for 240V AC at 50Hz and 288V AC at 60Hz.

3. Which Siemens devices are compatible?

It is suitable for compatible 3TF30–3TF33, 3TF40–3TF43, 3TH3, 3TH4, 3TB40–3TB44, 3TC44 and 3TH8 devices.

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4. Can it be used as a replacement coil?

Yes, provided the existing Siemens contactor or relay is compatible with the 3TY74030AU0 coil specification.

5. What should I check before purchasing?

Verify the device model, existing coil part number, control voltage and frequency to ensure compatibility.